package com.qf.zsq.interceptor;

import com.qf.anno.AuthCheckAnno;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginInterceptor implements HandlerInterceptor {


    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {


        if (o instanceof HandlerMethod) {

            HandlerMethod hm = (HandlerMethod) o;

            if(hm.hasMethodAnnotation(AuthCheckAnno.class)){
                Object obj = httpServletRequest.getSession().getAttribute("customer");

                if (null==obj){
                    httpServletResponse.sendRedirect("login.jsp");
                    return false;
                }
            }
        }

        return true;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}
